RTD Thermometers

1- Resistance thermometer for building automation, machine construction and environmental engineering

Different output signals

• Pt 100 signal
• 4...20 mA, temperature linear, analog
• 4...20 mA, HART protocoll (on request)

Short response time

Models for intrinsic safe circuits available

High operational reliability

• Long term stability
• Maintanance free

Resistance thermometer

Model	Type	Possible applications
	Air duct temperature sensor	Air ducts
	Average temperature sensor	Air registers Air ducts Air shafts Environmental protection
	Pipeline temperature sensor	Water pipes Heating pipes Sewage pipes Mechanical engineering
	Pipeline and air duct temperature sensor with exchangeable measuring inset	Air ducts, water pipes, heating pipes, sewage pipes, mechanical engineering, environmental engineering
	Pipeline and air duct temperature sensor	Air ducts, water pipes, heating pipes, sewage pipes, mechanical engineering, environmental engineering
	Pipeline and air duct temperature sensor with quick-release connector	Air ducts, water pipes, heating pipes, sewage pipes, mechanical engineering, environmental engineering

Dimensions, wiring diagrams



2- Resistance thermometers for the use in pipes, airducts and processing apparatus
Essential components

• Rapid connection technology
• Connection head type B
• Optional head transmitter
• Tough protection tube design
• Adjust. compression fitting respectively sheet-metal flange

Technical features

• High vibration resistance because of tough construction
• Fast response
• Connection head with degree of protection IP 67
• Transmitter EMC to NAMUR recommendation NE 21
• automatically pull relief

Applications

• Chemical industry
• Food and beverage industry
• HVAC
• Machinery industry

Technical data

• Resistance element : 1 x Pt 100
• Standard tolerance : EN 60751, class B
• Circuit type : 3-wire circuit
• Measuring range : -40...200 °C
• Protection tube :
  • Ø 8 x 2 mm,
  • material 1.4571 (AISI 316-TI)
• Process connection:
  • Adjustable compression fitting,
  • G½“, 1/2“ NPT thread,
  • Material: galvanized steel, steel compression ring
  • Sheet-metal flange, chromised, diameter 90 mm
• Nominal length : 50, 100, 150, 250, 400 mm
• Connection head : Type B, degree of protection IP 67
• Cable entry : Rapid connection technology
• Response time
  • Water 4 s (T05, v = 0.4 m/s)
  • Air 60 s (T05, v = 3 m/s)

Technical data sensor head transmitter

• Input
  • Pt 100 (EN 60751),
  • 3-wire circuit, fixed ranges
• Output : 4...20 mA, temperature linear
• Power supply : Us = 10.5...30 V DC, polarity safe
• Climatic conditions
  • Ambient temperature : -40...85 °C
  • Relative humidity : ≤ 100 % (condensation possible)
• Characteristics at rated conditions1)
  • Measurement deviation (upper-range value)
  • nominal value 0 °C: ≤ 0.15 % or 0.15 K
  • nominal value < or > 0 °C: ≤ 0.2 % or 0.2 K
  • Deviation of linearity : < 0.10 %
• Electromagnetic compatibility : according to NAMUR NE 21
• CE conform
• Measuring range ot the sensor head transmitter
  • -30...+ 60 °C or
  • -20...+100 °C or
  • -40...+150 °C or
  • -40...+200 °C

3- Resistance thermometers with welded protection tube and measuring inset

4- Resistance thermometers for installation in a thermowell, with measuring inset